NEW HI774 Phosphate Ultra Low Range Colorimeter – Checker® HC

[Hanna Instruments]

We are pleased to announce our new HI774 Marine Ultra Low Range Phosphate Checker HC®
New and improved marine Checker for low range phosphate determination in seawater.

• Specifically designed for the reef aquarium
• No conversion required, get direct results in parts-per-million phosphate.
• Increased auto-shutoff feature compared to previous models.
• Increased maximum detection limits compared to older models
• Increased starter reagents

 

[Maximus]

When is this being released?

 

[Hanna Instruments]

When is this being released?

Should be available at retail locations in a few weeks

 

[mta_morrow]

Love my Hanna checkers!

 

[Josh Kraft]

Would this be any more accurate than using the ULR Phosphorus checker and the conversion chart?

 

[wesman42]

Should be available at retail locations in a few weeks

So...not in time for Black Friday [emoji58][emoji58][emoji19]

 

[Hanna Instruments]

So...not in time for Black Friday [emoji58][emoji58][emoji19]

a few websites have it live for presale and the discount applies

 

[Hanna Instruments]

So...not in time for Black Friday [emoji58][emoji58][emoji19]

https://premiumaquatics.com/products/hanna-ultra-range-phosphate-checker.html

 

[Hanna Instruments]

So...not in time for Black Friday [emoji58][emoji58][emoji19]

https://www.aquacave.com/hanna-hi774-ultra-low-range-phosphate-checker.html?___SID=U

 

[sabor]

nm. found it. lol

 

[wesman42]

https://www.aquacave.com/hanna-hi774-ultra-low-range-phosphate-checker.html?___SID=U

Do you have any idea how much that made my night?? Thank you so much!!

 

[puffy127]

• Increased auto-shutoff feature compared to previous models.

Can you provide more detail on the increased auto-shutoff feature?

Also do you still have to hold down the button to start the 3-minute timer after adding C2?

Will HI-736 (ULR Phosphorous) reagents work with this checker or will new reagents be needed?

 

[Hanna Instruments]

Can you provide more detail on the increased auto-shutoff feature?

Also do you still have to hold down the button to start the 3-minute timer after adding C2?

Will HI-736 (ULR Phosphorous) reagents work with this checker or will new reagents be needed?

The HI736 has a shutoff of: after three minutes of non-use and two minutes after reading. The test requires 2 minutes of shaking the reagent leaving 1 minute to pour the powder into the cuvette and start mixing. The new HI774 Checker has an auto off of after 7 minutes of non-use and 2 minutes after reading. This allows for more time in between C1 and C2 to administer the reagent and start shaking.

You still need a timer.

The cannot use the HI736-25 reagents with the HI774

 

[puffy127]

The HI736 has a shutoff of: after three minutes of non-use and two minutes after reading. The test requires 2 minutes of shaking the reagent leaving 1 minute to pour the powder into the cuvette and start mixing. The new HI774 Checker has an auto off of after 7 minutes of non-use and 2 minutes after reading. This allows for more time in between C1 and C2 to administer the reagent and start shaking.

You still need a timer.

The cannot use the HI736-25 reagents with the HI774

Thanks!

What I meant regarding the timer was whether you had to hold the button down for a few seconds vs just pressing the button to start the timer.

 

[BrianPoni]

Would this be any more accurate than using the ULR Phosphorus checker and the conversion chart?

Reply in case they missed this question.
More accurate than ULR Phosphorus checker?

 

[BrianPoni]

@Hanna Instruments Will this be more accurate than the ULR Phosphorus checker? Or the same with the conversion programmed in?

 

[wesman42]

I pre-ordered mine yesterday! I'll write a review when it comes in.

 

[Hanna Instruments]

@Hanna Instruments Will this be more accurate than the ULR Phosphorus checker? Or the same with the conversion programmed in?

For the most part is has the same accuracy statement. The HI736 ULR Phosphorus Checker has an accuracy statement of ±5 ppb ±5% of reading which equals 0.0153ppm phosphates. The new HI774 has an accuracry statement of ±0.02 ppm ±5% of reading. Since the new Checker has a resolution of 0.01ppm we had to round the accuracy up to be conservative in our representation of the instrument's performance. You can expect the same overall accuracy however.

 

[Hanna Instruments]

Thanks!

What I meant regarding the timer was whether you had to hold the button down for a few seconds vs just pressing the button to start the timer.

Yes that function is still the same.

 

[puffy127]

Yes that function is still the same.

What is the reason for this? I've wasted many reagents because of pressing the button at C2 instead of holding the button. All the other checkers (Ca, Alk, etc.) only require a press of the button at C2 except for phosphate/phosphorous, which requires holding the button down. Why not make it consistent across all your checkers?